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Sleep tracking accuracy ios16

I have been using Autosleep (available on the App Store) to track my sleep for several years and I've learned to trust it. Now that iOS16 has more detailed sleep tracking, I compared the Autosleep results with the Apple sleep tracking and there are big differences.

Notably, in my case (and confirmed by one other user on another forum) the Apple sleep app registers zero or very little deep sleep on most nights whereas Autosleep registers between 45 minutes and 2 hours. The average adult gets 1-2 hours of deep sleep per night so I believe that the Apple algorithm may be at fault. It is not possible to test actual deep sleep without an EEG Device but the algorithm should be a decent approximation.

I'd appreciate it if other users/biohackers could share their experiences here.

Apple Watch Series 7, watchOS 9

Posted on Sep 15, 2022 12:33 AM

Top-ranking reply

mjperry51

Level 1

23 points

Posted on Nov 17, 2022 5:45 AM

If you look at the various data points/sources I and others have provided here your experience may be the outlier. I have never seen a report from any sources (AutoSleep from the Apple Watch or the native FitBit sleep app) anywhere near five hours of Deep Sleep (or REM for that matter). My investigations across three apps and two separate hardware platforms do not support your assertions.

For you to make such an absolute blanket statement (AutoSleep is wrong) is highly presumptive.

"how poorly I sleep"

This can be an indication of other hidden health issues. I had poor Detailed Sleep reporting from my FitBit for several years; very frustrating. Subsequently learned I have some significant cardiac issues; sleep stage detection is based (among other things) on monitoring HRV which my conditions impacted. Once those issues were resolved though medication the FitBit began to return regular Detailed Sleep reports.

I'm not a doctor -- all I'm saying is your problems sleeping (and the seemingly exaggerated Deep Sleep reports you get) could be an indication of other health matters.

For what it's worth.

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Sleep tracking accuracy ios16

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